Clamping or separating device



Aug. 16, 1927.

T. A. ROTSCH CLAMPING OR SEPARATING, DEVICE FiledMay 14. 1925 INV ENTOR. THEODORE AROTJCH BY g e A TTORNE Y.

Patented Aug. 16, 1927.

UNITED? SI'It ATE'S THEODORE A. ROTSCH, OFWHITTIER, CALIFORNIA.

GLAMBING, OR SEPARATING DEVICE.

Application filed May 14, 1925. Serial No. 30,280.

My inventionrelates to. a novel form of device or: mechanism affording an expeditiousand speedy means for clamping certain separated parts together, or optionally separating the same or other parts of said structure.

As is well known in oil well practice, a pump rod frequently fractures so close to its socket-or screw-threaded connection associatedwith' the various sections of saidrod,

thatheretofore it has. been impossible to remo-vethe broken partfrom its socket or connection, necessitating. the replacement of both rod and socket, and consequently requiring, the added expense I of 1 said socket, which in most cases isstill perfectly good and usable. By the use-of my invention, these objectionable features areentirely elimina-ted, itbeinglpossible to remove the broken portion of the pump rod in a surprisingly short period oftime.

It may alsobe-stated that by the use of my invention it is possibleno-t only to remove fractured pump-rod .pins, but is'equally useful in removing broken bolts from nuts, forcing cross keys from shafts, and numerous-other usesfor which said invention is especially adapted.

Another object of my inventionis to provideanovel form of device or mechanism, preferably provided with a U-shaped mem her, one leg ofwhich is equipped-with a stationary element in the form of one or more projections extending from said leg, the other of said legs-being adapted to .have positioned therein by means, for example, of screw-threads, a reversible angular rotary element, which elements may be provided with means, such as hollowed-out engaging portions, either end of saidv element being adapted to be made to coact with said projections to provide an eflicient andexpeditious means for clamping or separating certain arts of a structure.

A further object of myinvention is to? provide a novel form of device or apparatus which is simple in form, exceptionally easy and inexpensive to manufacture, durable, al most impossible to get out of order, composed of a minimum number of parts, and thoroughly reliable and efficient to effect the objects intended.

It may also be stated, that it is within the province of my invention to arrange the proj ect-ions associated with one of the legs of the tl-shaped member out of. alinement, so that 111' case one should be broken .the others will stilllbeable to'functiom,

Further objects and advantages ofmy invention .will'become moreapparent as the descale ofpthe reversible angular and movable Element removed from the U.-'sh'aped mem- Figs, 3v and 4 are respectively side and end elevational views of my U-shaped member;

ig. is a fragmentary part cross-sect1onal .v1ew of Fig. 1 on an enlargedscale but dlsclosmg a slightly,modifiedform of my invention;

Fi'gr6iisan elevational view of theconnector or socket showing a'ifractured pump-rod associated therewith;

7 and S' are cross-sectional views respectively on the lines 7j7 and 88 of Fig," 2, and

Figs. 9 and 10 showplan and fragmentary elevational detail views ,of a modification. Descrlb'ing my invention more in detaihit is my purpose to construct the bracket or Usha[ped member 1 .of highly tempered tool steel, one leg 9 ofwhich is bent inwardlyas shown to provide for rigidity andstiffness, the end' ofsa'id leg being equippedwith one ormo-re projections 10, shapedas shown, also for thesake of stiffness and rigidity, said projections being; preferably, though not necessarily, three in number, asshown in Fig. 4.

The other leg 2 ispreferably bent substantially-.atright anglesto the body portion of the member 1, and said leg; is equippedwith a hole 3, preferably, though not necessarily, screwthreaded to provide an e 'ig'aging means with the threadediends 5 and;6'of1 the angular element orscrank portion 4, which element constitutes the active member of my device.

As will be clear from Fig. 2, the ends 5 and 6 are provided with reduced portions 7 and 8 ofv different diameter, so that sockets, connectors, nuts, and the like, of different diameter may be accommodated. The portions 7 and 8, as shown in Figs. 7 and 8, are also preferably hollowed-out, which hollowed portions are adapted to coact with and form an efiicient means for engaging any projections which may happen to be formed on the broken part or other structure to be removed, clamped, or separated.

It may also be stated that the use of three projections, rather than one or two, pro vides for a much more steady and secure hold on the parts to be removed, clamped, or separated. It has been found in practice that the sharp points on said projections will take into and readily hold any iron or steel of average construction, and the pressure exerted will even hold securely any eX- ceedingly hard or tough metal.

My invention is also exceedingly useful in drawing together parts or articles that have become spread, where such articles or parts cannot be moved by a vise, or said articles or parts When in such form that the more or less wide Vise jaws cannot enter the same. As is well known, such contingencies often arise in the handling of machinery, engines, and the like.

As shown in Figs. 1, 5, and 6, my invention is especially useful in connection with the socket or pump-rod connector S, when the pump-rod R has become fractured close to said socket or connector.

In such a case, the socket S is positioned between the legs 2 and 9 of the member 1 so that the broken rod R will be positioned over the projections 10. Depending upon the diameter of the socket S, the appropriate end 7 or 8 is inserted in the hole 3 of the leg 2, and screwed home, said end entering the socket S and engaging with the inner end of the broken rod R, the hollowed portion of said end engaging with any projec tion that may be present on said rod.

The member 7 l8 has been fashioned as shown so that by holding the member 1 firmly, either by hand, or in a suitable vise or clamp, the end 8 may be used as a crank to remove the broken portion R from the socket S. The projections 10 engaging the lower portion of the broken portion R, and the part 7 being in firm engagement with the upper part of said broken portion, the threads 5 will engage with the threads of the socket S, when the end 8 is used as a crank, causing the broken portion to be unscrew-ed from said socket.

As hereinbefore stated, if the socket S has a different internal diameter than that of the part equipped with the threads 5, the

member 7l8 is reversed, the threads 6 engaging the threads of the socket.

It will be understood, of course, that a wrench may be applied to the socket S, in case said socket is of such a size that the threads 5 or 6 may not be engaged with the threads of saidsocket. Such a construction is shown in Fig. 5. The parts being in the position previously described, the wrench is applied to a socket and the broken portion R quickly removed thereby.

It will of course be understood that I do not desire to be limited to the exact proportions or shape of the various parts of my invention, nor do I desire to be limited to the exact manner of mounting the angular member 4. in relation to the leg 2, since this in practice may be varied.

Nhil-e I have thus described my invention with great particularity it will be obvious that the same may be modified throughout a wide range. I therefore do not propose to be limited to the'exact details of construction shown and described, but reserve the right in practice to make any and all modifications thereof that fall within the scope of the appended claims.

I claim as my invention:

1. In a device of the class described, a U-shaped member, one or more project-ions on one of the legs of said member, an angular element equipped with a set of screw threaded port-ions associated with the other leg of said member, said angular element when rotated being adapted to coact with said projections to form a clamping means or to separate two devices thr ugh theact-ion of said threads.

2. In combination, a U-shaped member, one or more projections on one of the legs of Said member, an angular element associated with the other leg of said member, and

means on both ends of said angular element whereby either of said ends may be made to coact with said projections to provide optionally a separating or clamping means.

3. In a device of the class described, in combination, a U-shaped member, there being one or more projections associated with one leg of said U-shaped member, and an angular element having a pairof hollow end portions reduced in size, either of which is adapted to be positioned in the other leg of said member for the purpose set forth.

In testimony whereof I have signed my name to this specification.

THEODORE A. ROTSCI-I. 

